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Finding the Fourth Proportional to 16,780.92, 25,182.92 and 6,920.20

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Solution

The fourth proportional to 16,780.92, 25,182.92 and 6,920.20 is: 10,385.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,780.92 : 25,182.92 = 6,920.20 : x
  2. Step 2: Convert to fraction form
    16,780.92/25,182.92 = 6,920.20/x
  3. Step 3: Cross multiply
    16,780.92x = 25,182.92 × 6,920.20
  4. Step 4: Simplify right side
    16,780.92x = 174,270,842.98
  5. Step 5: Solve for x
    x = 174,270,842.98/16,780.92
  6. Step 6: Final answer
    x = 10,385.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.